Farmers often use water buffalo to help them in the ______fields. A: paddle B: paddy C: pagoda D: pagan

Farmers often use water buffalo to help them in the ______fields. A: paddle B: paddy C: pagoda D: D. pagan

Which is not the Paddy agricultural economic and cultural zone in ancient China?（ ） 。 A: Chengbeixi culture B: Pengtou Mountain culture, C: Hemudu site D: Qinghai-Tibet Plateau